.sz {
  background-image: url("../img/diceK3.png");
  display: inline-block;
  background-size: 200% 600%;
  vertical-align: middle;
}

.sz-lg {
  height: 3em;
  width: 3em;
}
.sz-mi{
  height: 2.3em;
  width: 2.3em;
}
.sz-nm {
  height: 2em;
  width: 2em;
}

.sz-1 {
  background-position: 0 0;
}

.sz-2 {
  background-position: 0 -100%;
}

.sz-3 {
  background-position: 0 -200%;
}

.sz-4 {
  background-position: 0 -300%;
}

.sz-5 {
  background-position: 0 -400%;
}

.sz-6 {
  background-position: 0 -500%;
}
